Mayweather vs Maidana 2: Live streaming results and round-by-round coverage (Sept. 13, 2014)

Tonight beginning at 7:00 pm EDT on Showtime and continuing with four more fights at 8:00 pm EDT on Showtime pay-per-view, Bad Left Hook will have live coverage of the Mayhem card from the MGM Grand in Las Vegas, as Floyd Mayweather returns to face Marcos Maidana for a second time in the main event.

Though the two are fighting at the welterweight limit of 147 pounds, Mayweather (46-0, 26 KO) will be defending titles in two weight classes tonight, as Maidana (35-4, 31 KO) will have the opportunity to lift the WBC and WBA welterweight titles, as well as the WBC junior middleweight title, as the sanctioning body allowed him to defend both in this fight. Mayweather's WBA junior middleweight title, which he won from Miguel Cotto in 2012 and last defended against Canelo Alvarez in September 2013, is not on the line.

The undercard features a pair of world title fights, for whatever they're worth. Here's the run order of the undercard:

SHO fight, 7:00 pm EDT: John Molina (27-4, 22 KO) meets Humberto Soto (64-8-2, 35 KO) in a 10-round junior welterweight fight on Showtime.

PPV fight 1, ~ 8:00 pm EDT: Alfredo Angulo (22-4, 18 KO) takes on James de la Rosa (22-2, 13 KO) in a 162-pound catchweight fight, scheduled for 10 rounds.

PPV fight 2: Miguel Vazquez (34-3, 13 KO) defends the IBF lightweight title against Mickey Bey (20-1-1, 10 KO) in a 12-round bout.

PPV fight 3: Leo Santa Cruz (27-0-1, 15 KO) takes on Manuel Roman (17-2-3, 6 KO) in a 12-round bout for Santa Cruz's WBC super bantamweight title.

PPV fight 4 (probably around 11:00 pm EDT): Floyd Mayweather meets Marcos Maidana in the main event, a rematch of their May 2014 fight.